Gas burner



D. M. ISTAINBR'OOK 2,400,030

GAS BURNER May 7, 1946.

Filed July 5, 1945 E27 Q l .35 34 '35 WW G INVENTOR Sfa/n brook DamATTORN EY "is'open at P tentedMsy 7, i946 Q caboose o'ss Bunsen r DonM.. stainbrook. Detroit, rush. Application July 8, 1948, Serial No.602,984

2 Claims. (or 158-7) My invention to gas burners and more Particularlyto conversion heater units, suitable for installation into furnaces andboilers.

It is an object of my invention to provide gas burner units which may beconveniently installed and adjusted to. provide the optimum conditionsof combustion for gaseous fuel.

It is also an object of my invention to provide gas burner conversionunits constructed ofa few ru ged and simple elements which may beconveniently manufactured, assembled, and installed,

for burning gaseous fuel in various diflerent furnaces or boilers. 4

Further objects and advantages are within the scope of my invention,such as relate to the ar rangement, operation and function of therelated elements of the-structure, to various details of constructionand tocombinations of parts, elements "per se, and to economies ofmanufacture and numerous other features as will be apparent from aconsideration of the specification in conjunction with the drawingdisclosing specific embodiments of the invention, inwhich:

1 is a central sectional view taken verticall! through a gas conversionunit, on line l-i of Fig. 2, the walls of'an enclosing furnace beingadded; and A Fig. 2 is a plan view of one of the gas; burner conversionunits, shown alone without the furnace forclearness. I j

Referring more specifically to Figs. 1 and 2 of the drawing, Lhaveiliustratively disclosed one of improved gas conversion heater unitseoinprising a gas mixing and heating body ii which a generally bowl ordish shaped conformation and it may be made of circular cross-section ofvarious diameters selected to suit the fire-pots of the variousdifferent furnaces to be converted for burning fuel supplied inisaseouscondition.

A cover ii is provided of a size and shape suitable to be installed overthe open top of the body il in a spaced relation so that a combustiongas delivery space I I is provided between the peripheraledges ofthecover andthebodyfor proiect-' ins a gaseous iiameadiacent a surfaceto be heated. The cover is maybe supp rted upon adiustable support meansI! so that the widthor the space II may be adiusted to the operatingconditions or as available at any particular installation. This may bere dily accomplished by providing support screws ll threaded throughsuitable apertures at spaced points around the "periphery of the coverIt. The lower portions oi screws i1 may be turned down to smaller dithetop. The body ii is preferably of ameters to rotate smoothly in suitableapertures provided in the body II, and pins Ii may be passed through thelower ends. By turning the screws II, the cover I] may be raised orlowered at various points around the periphery to vary and to" equalizethe combustion space ll around the periphery, as desired. for anyparticular in stallation. p

Agas inlet conduit I! passes into the body ii and opens under the coverplate is for discharglng gas against the cover. Depending from [theunderside of the cover 13, and in close thermal connection therewith, isbaille means 2| surrounding and enclosing the upper end of the inletconduit ii for causing an abrupt reversal of the flow of the gas whileat the same, time conducting and radiatingheat thereto from the cover.The baflie means 2! is of suiilciently larger cross-section than theinlet conduit ll so that the admitted gas may-easily reverse itscourseand flow down wardly where it turns and flows under 'the loweredges of the baiiie means. This structure is readlly provided b? makingthe baille 2! of tubular form and it may be cast integral with the coverplate or a piece of pipe of suitable length and diameter may be weldedto the under side of the cover plate, as represented. A well ordepression 23 is preferably provided in the central area of the bottomof the body II and into which the lower end of the baflle 2| terminatesin spaced relation so that the gas flow must again reverse and go upwardbefore passing. uniformly outward to the combustion space ll. To furtherheat the gases and provide for uniform outward flow, a

Y plurality of radially extendin ribs I! are provided projecting downinto the body I I from the underside of the cover I3, and these may beeither integral or welded metal strips, as will be understood.

, The inlet conduit l8 passes down through the 3 bottom of the well 2!where it connects with a pipe 2! which extends horizontally beyond theperiphery of the body for connection with any suitable source of naturalor manufactured gas, and air in proper proportions, in a conventionalmanner. Forthis purpose. the terminus of the extended conduit 25 maydiverge to a large bell mouth 21 to be covered by an air regulatingdamper II which is centrally apertured for receivins a gas supply nomleII in a rnanncr com-- men" with the usual household gas" burner. By

turning the damper the ratio of air drawn in by the injected jet of gasis-regulated, as desired, and bynieans of any conventional valve 33 therate of gas flow may be conveniently regulated, from the source (notshown).

For installation in a conventional hot air furnace 34 as represented inFig. 1, my improved conversion gas burner is made of a suitable size sothat the ga combustion space I! is disposed adjacent and around theinside of the inner wall 35 of the furnace. The body II is supported byany substantial abutments 31 of tire bricks, or like refractorymaterial, placed in the ash pit oi the furnacev to support the body at asuitable height. The horizontally extended pipe 25 is preferablyextended out through the ash pit door-way 38, which may be closed by asuitable plate 39, as will be understood. After the burner issuitablyinstalled and positioned, the air and gas flow are properlyregulated by the damper 29 and valve 33 respectively. By adjusting thescrews I! the cover I3 is suitably spaced to project the gas flame 4| upalong the inner surfaces of the firebox wall in the most eflectivemanner. As the gas flows through the body, as represented generally bythe arrows; it is heated and guided to flow uniformly to the peripheralcombustion space l5.

It will be understood that the burner may be connected to receive gasfrom any suitable source of artificial or natural gas, and various wellknown automaticcontrols may be installed in well known arrangements (notshown), as desired, to suit various difierent installations.

It is apparent that within the scope of my invention modifications anddifierent arrangements may be made other than herein disclosed. and thepresent disclosure is illustrative merely, the invention comprehendingvariations thereof.

I claim:

1. A gas burner comprising, a gas distributing body of circularcross-section open at the top, a fiat disc shaped cover plate of asuitable size and Shaw fit over the open top side 01' said body, periperally disposed support screws tor adjustably supporting said coverplate upon said body spaced above the peripheral edges or the body toprovide a combustion gas delivery space suitable for the operatingconditions of an installation, a central well in said body, a gas inletconduit'opening into said body through thecentral well portlon andopening adjacent the central area of said cover plate, a tubular baflleof larger cross-section than said inlet conduit, said tubular baillepro- Jecting down from the cover plate in enclosing relation around theupper end of said gas inlet conduit and terminating at the lower end insaid well to provide a gasflow space therefrom, said gas inlet conduitpassing from the bottom of said body and extending horizontally beyondthe periphery of said body and the terminus of said conduit beingadapted for receiving gas fuel and air in proper mixing proportions froma suitable source.

2. Gas burning apparatus comprising, a bowl shaped body open at the-top,a thermally conductive cover disposed on the open top of said body,adjustable means supporting said cover with its edges spaced from thebody to provide a suitable peripheral fuel gas delivery spacetherearound, a gas inlet conduit passing into said body and openingadjacent the central area of the cover plate for projecting a suitablemixture of air and fuel gas into the body, baffl means of thermalconductive material depending from said cover in intimate heat exchangerelation therewith and enclosing the adjacent and of said inlet conduitto provide a rev'erse flow path for gas and air discharge from the inletconduit so that such gas and air is intermixed and heated as it isdelivered toward the combustion space opening peripherally from saidbody, and thermally conductive gas flow guide means projecting down intosaid body from the underside of said cover and extending between thecentral and the outer portions thereof for heating and smoothly guidingthe outwardly flowing gases.

DON M. STAINBROOK.

